4.5
(561)
7,037
hikers
253
hikes
Hikes around Llanfihangel Ysgeifiog explore a varied landscape on the island of Anglesey. The region is characterized by coastal paths, expansive nature reserves, and large reservoirs. The terrain is generally low-lying, with trails leading through woodlands, across marshes, and along sandy beaches, offering routes suitable for a range of abilities.
Last updated: April 25, 2026
4.4
(19)
210
hikers
11.1km
02:53
70m
70m
Hike the moderate Lôn Las Cefni Trail, a 6.9-mile route through diverse landscapes and wildlife havens on Anglesey, including Llyn Cefni Res
4.7
(28)
210
hikers
17.4km
04:28
80m
80m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.7
(10)
144
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
38
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
35
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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We visited for the Parkrun, which was cancelled whilst a walkway is fixed (some more weeks, I would expect). You can still access the lake along the disused railway line for part of the way - but not a good surface for running. Then there is a path around the lake with views across the lake and stretches through the woods, lovely, if rather muddy in places following wet weather. In total about 9 km around. Hope to do this again in the Spring with the promise of wild daffodils and perhaps a red squirrel.
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Quiet paths easy cycling crosses deserted railway line still present, which there trying to reopen
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Almost endless beach, check tide time to visit Llanddwyn Island as cut off at high tide
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Just love this walk. You can park next to the beach but you really are missing out if you don’t walk from the main road through the woods to the beach. Check the tide times if you want to hop over onto the island to see the lighthouse. My dog loves the golden sand but check times of the year for being allowed on the beach.
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One of my favourite places to sit and look out to Snowden.
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On the longest day of the year, sunlight flows into the passageway of this Neolithic burial grounds. Bryn Celli Ddu Burial Chamber is one of Anglesey’s most famous prehistoric landmarks, Bryn Celli Ddu (the ‘Mound in the Dark Grove’ in English) is actually two sites in one. In the early Neolithic (New Stone Age) period, a henge (bank and ditch) enclosing a circle of stones was built here, to be replaced later by a chambered tomb beneath a mound measuring up to 85ft/26m in diameter. Inside, a long, narrow passage leads to an octagonal chamber 8 feet/2.4m across, where artefacts such as human bones, arrowheads, and carved stones have been found.
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Llyn Cefni Dam During World War II, a water scheme was devised for the town of Llangefni in central Anglesey. It involved water from a local source being pumped to two settling tanks in the Dingle part of the town. From here the water was pumped across the river to a reservoir and water tower, on the site of the present Pennant Estate. These arrangements became redundant with the building of the Cefni Reservoir, which was completed in 1951, but the settling tanks and pumping station survive in Llangefni to this day. The new scheme was designed to supply most of the water needs for the people of Anglesey for the foreseeable future
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There are over 260 hiking routes to explore in the Llanfihangel Ysgeifiog region. These range from short, easy strolls to more challenging day hikes, covering diverse landscapes like coastal paths, reservoir circuits, and woodland trails.
The terrain is generally low-lying and accessible. Most trails are rated as easy or moderate, making the area suitable for a wide range of fitness levels. While there are a few more difficult, longer routes, the majority of hikes follow well-surfaced paths through forests, along beaches, and around reservoirs.
Yes, the Red Squirrel Spotting Area – Red Squirrel Viewing Spot loop from Llangefni is an excellent choice for families. It's a short, easy walk of about 3.4 km through the Dingle Nature Reserve, which features a unique raised boardwalk and is famous for its friendly red squirrels.
Many trails in the area are great for walking with dogs, especially the woodland and reservoir paths. However, be aware of restrictions in certain areas. For example, dogs are not permitted on the tidal Llanddwyn Island between April 1st and September 30th to protect nesting birds. Always check local signage and keep dogs on a lead around livestock and wildlife reserves like Malltraeth Marsh.
Most of the popular trailheads have dedicated parking. The Cefni Reservoir has a convenient car park and picnic area at the start of its main loop. For coastal walks, there are large car parks available for Newborough Forest and Llanddwyn Beach, though these are often pay-and-display.
For a fantastic coastal experience, the Llanddwyn Beach – Tŵr Mawr Lighthouse loop from Malltraeth is highly recommended. This route takes you across the beautiful Newborough Warren to the stunning Llanddwyn Beach, with views of Snowdonia, before heading out to the historic Llanddwyn Island at low tide.
The trails around Llanfihangel Ysgeifiog are highly rated by the komoot community, with an average score of 4.5 stars. Hikers often praise the variety of scenery, from the tranquil woodlands of The Dingle to the dramatic coastline at Llanddwyn Island, and the well-maintained, accessible paths.
Yes, the region is rich in history. The walk to Llanddwyn Island includes the ruins of a church dedicated to St. Dwynwen, the Welsh patron saint of lovers. Within Llanfihangel Ysgeifiog itself, you can find the ruins of the 15th-century St Michael's Church, and the nearby Plas Berw country house adds another layer of historical interest to the landscape.
The Red Squirrel Spotting Area – Llyn Cefni Reservoir and Dam loop from Llangefni is your best bet. This trail goes directly through The Dingle (Nant-y-Pandy) Nature Reserve, a well-known sanctuary for red squirrels. The ancient woodland provides the perfect habitat, and the squirrels here are often seen by visitors.
The area is a haven for birdwatchers. Malltraeth Marsh, a Site of Special Scientific Interest, is particularly noteworthy. The RSPB reserve Cors Ddyga, located on the marsh, is managed to support breeding lapwings and bitterns. You can also spot raptors like marsh harriers. The Lôn Las Cefni path provides excellent vantage points over the marsh.
Absolutely. While it's also a popular cycle route, Lôn Las Cefni is fantastic for walking. It's a 13-mile, largely traffic-free trail that winds through some of the area's key highlights, including Newborough Forest, Malltraeth Marsh, and the Cefni Reservoir. Its flat sections make it particularly suitable for leisurely walks.
Cors Bodeilio offers a very different walking experience focused on nature and tranquility. It's a fen habitat, known for its rare plants and wildflowers. The trails here are quiet and provide a great opportunity to see wild ponies, butterflies, and a variety of birds in a peaceful setting.


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